For the first one:
The radian of 60º is 1.047. you just have to find one that has the same value, which would be /3. (the last choice).
for the second one:
you do it the other way. The answer is 45 degrees.
What is the surface area of a box with the dimensions of length 4cm, width 3cm, and height 5cm? Only type the number - no units.
1 answer:
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Answer:
see explanation
Step-by-step explanation:
the perimeter is the sum of the 3 sides of the triangle
add the parts of the ratio 21 + 8 + 14 = 43
divide the perimeter by 43 to find the value of one part of the ratio
= 5 ft ← 1 part of the ratio, hence
21 parts = 21 × 5 = 105 ft
8 parts = 8 × 5 = 40 ft
14 parts = 14 × 5 = 70 ft
the 3 sides of the triangle are 105 ft, 40 ft and 70 ft