1. A = ¹/₂bh
26 = ¹/₂(8)(h)
26 = ¹/₂(8h)
26 = 4h
4 4
6¹/₂ = h
The answer is D.
2. The answer is C.
Answer:
6√3 square units
Step-by-step explanation:
The ratios of side lengths in a 30°-60°-90° triangle are 1 : √3 : 2. Using this fact, we can find the lengths of the orthogonal sides of the triangle to be ...
3(2/√3) = 2√3 . . . . side AB in the attached figure
and
2·3 = 6 . . . . . . . . . . side AC in the attached figure
Then the area of the triangle is ...
A = 1/2bh
A = 1/2(6)(2√3) = 6√3 . . . . square units
Because its being halved each time it would be 0.5 then 0.25. i hope this helped
6.739 = 6.7 to the tenth place
52.192 = 52.2 to the tenth place
0.61 = 1 to the unit(ones) place
348.508 = 348.51 to the hundredth place
You know the definitions of the trig functions tell you
.. cos(78°) = (5 ft)/?
.. ? = (5 ft)/cos(78°) ≈ 24.0 ft