SpookyAlex2132
13.03.2020 •
Mathematics
What is the length of the base of a right triangle with an area of 20m2 and the height of 4 m
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Ответ:
The base is 10 meters
Step-by-step explanation:
The area of a right triangle is (b × h) ÷ 2 = a
Let's input the given values and find the value of b:
(b × 4) ÷ 2 = 20
4b ÷ 2 = 20
2b = 20
b = 10
Check:
(10 × 4) ÷ 2 = 20
40 ÷ 2 = 20
20 = 20
It works!
Ответ:
290 - 258 = 32 pounds
32/258 = 0.124
0.124 = 12.4% approximately was the percent of error