Quiz #1 3rd 9 wks. CH 7.1 and &.2

Which of the following equations are true? Select all that apply.

Triangle RWG, where m∠WGR=90∘ is shown. Which of the following statements is true?

A 25-foot ladder is placed 7 feet from the wall, as shown.

How high up the wall will the ladder reach?

• 18 ft.

• 20 ft.

• 22 ft.

• 24 ft.

Which of the following represent the three sides of the right triangle shown below? Select all that apply.

• 6

• 10

• 11.66

• 5

• 100

△WRN is shown, where m∠R=90∘, WR=15, RN=8, and WN=17.

What is the ratio of cos ⁡N?

△RBX is shown, where m∠H =90∘, RB=12, BX=5, and RX=13.

What is the ratio of sin ⁡X?

△MKH is shown with altitude DH. Select all the statements that are true about △MKH.

• If m∠M=38∘, then m∠DHM=52∘.

• If m∠M=38∘, then m∠K=52∘.

• If m∠K=47∘ and m∠M=21∘, then m∠MHK=112∘.

• If m∠K=63∘ and m∠M=17∘, then m∠MHK=80∘.

• If m∠M=55∘ and m∠KHM=103∘, then m∠K=158∘.

△TRK where m∠RTK=90∘ is shown.

Which of the following statements are true? Select all that apply.

• The hypotenuse of △TRK is RK.

• The legs of △TRK are TK and RK.

• The hypotenuse of △TRK is RT.

• The legs of △TRK are RT and RK.

• The legs of △TRK are RT and TK.