Math Help Please

Question

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2090

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+9

Question #1

https://static.k12.com/nextgen_media/assets/8114732-NG_GMT_Q_01_U11_Quiz_DP100_1079_001.jpg

What is the area of this triangle?

Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.

Question #2

https://static.k12.com/nextgen_media/assets/8097048-NG_GMT_Q_01_U11_Quiz_11.png

The figure shows the dimensions of the side panel of a skateboard ramp.

What is the area of this panel?

Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.

Question #3

A triangular rug has sides that are 5 ft and 4 ft long with an included angle of 79°.

What is the area of this rug?

Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.

Question #4

https://static.k12.com/nextgen_media/assets/8097018-NG_GMT_Q_01_U11_Quiz_07.png

What is the area of △ABC?

Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.

sillygirl77 Apr 30, 2018

CPhill · Answer 1 · 2018-04-30T08:22:11

1.

Area = (1/2) (14.2) (8) sin (99° ) ≈ 56.1 in^2

2.

Area = (1/2) (14) (12) sin (20°) ≈ 28.7 ft^2

3.

Area = (1/2)(5) (4)sin(79°) ≈ 9.8 ft^2

4.

Area = (1/2) (40)(25) sin (80 ° ) = 492.4 m^2