question

Each leg of a 45Â°-45Â°-90Â° triangle measures
14 cm. What is the length of the hypotenuse?

answer

D. 14(2 cm

question

What are the angle measures in triangle ABC?

answer

C. mâˆ A = 90Â°, mâˆ B = 60Â°, mâˆ C = 30Â°

question

The hypotenuse of a 45Â°-45Â°-90Â° triangle measures 24 inches. What is the length of the one leg of the triangle?

answer

B. 12(2 in.

question

Triangle ABC is an equilateral triangle. Segment AD measures 18 inches.
Which statements about the diagram are correct? Check all that apply.

answer

C. DC=6(3 in.
D. AC=12(3 in.

question

A baseball field is in the shape of a square. The distance between each pair of bases along the edge of the square is 90 feet. What is the distance between home plate and second base?
_________ (2 feet

answer

90

question

A man is standing near the Washington Monument. At a 60Â° angle of elevation from the ground, the man sees the top of the 555-foot monument.
Which measurements are accurate based on the scenario? Check all that apply.

answer

A. The distance from the man's feet to the base of the monument is 185(3 feet.
B. The distance from the man's feet to the top of the monument is 370(3 feet.

question

The roof of a house is the shape of an isosceles right triangle as shown in the diagram below.
What is the height of the roof, h?

answer

B. 5(2 ft

question

From the side view, a gymnastics mat forms a right triangle with other angles measuring 60Â° and 30Â°. The gymnastics mat extends 5 feet across the floor. How high is the mat off the ground?

answer

B. 5(3/3 ft

question

Consider that â–³ABC is an equilateral triangle, and AD is a perpendicular bisector of â–³ABC.
If AB = 2x, complete the statements below.
2 + (AD)2 = (2x)2
(AD)2 = x2 - x2
(AD)2 = x2
AD =

answer

x
4
3
x

question

Isaiah sketches a model of a skateboard ramp. The model has two surfaces on which to skate, represented by sides AB and AD in the diagram.
The steepest side of the model, AB, measures 4 inches. What is the length of the other skating surface, AD?

answer

C

question

Consider triangle QRS. The legs each have a length of 10 units.
What is the length of the hypotenuse of the triangle?

answer

D

question

Consider the incomplete paragraph proof.
Given: Isosceles right triangle XYZ (45Â°-45Â°-90Â° triangle)
Prove: In a 45Â°-45Â°-90Â° triangle, the hypotenuse is times the length of each leg.
Because triangle XYZ is a right triangle, the side lengths must satisfy the Pythagorean theorem, a2 + b2 = c2, which in this isosceles triangle becomes a2 + a2 = c2. By combining like terms, 2a2 = c2.
Which final step will prove that the length of the hypotenuse, c, is times the length of each leg?

answer

C

question

Consider triangle PQR. What is the length of side QR?

answer

C

question

The hypotenuse of a 45Â°-45Â°-90Â° triangle measures 18 cm.
What is the length of one leg of the triangle?

answer

D

question

A wall in Maria's bedroom is in the shape of a trapezoid. The wall can be divided into a rectangle and a triangle.
Using the 45Â°-45Â°-90Â° triangle theorem, find the value of h, the height of the wall.

answer

C

question

A person is standing exactly 36 ft from a telephone pole. There is a 30Â° angle of elevation from the ground to the top of the pole.
What is the height of the pole?

answer

B

question

Consider triangle DEF. The legs have a length of 36 units each.
What is the length of the hypotenuse of the triangle

answer

D

question

The height of trapezoid VWXZ is units. The upper base,VW, measures 10 units. Use the 30Â°-60Â°-90Â° triangle theorem to find the length of YX.
What is the length of the lower base, ZX?

answer

C

question

The length of segment XY is 9 cm. Which statements regarding triangle XYZ are correct? Check all that apply.

answer

A
C

question

Consider triangle GHJ.
What is the length of line segment HJ?

answer

B