Answer:
Hello
Explanation:
13. given:
length of the sides of the triangle (a)= 8cm
therefore, Altitude= (a√3)/2
Altitude= (8√3)/2) = 6.92 cm
14.Given: diagonal=10 inches
Perimeter= 2√2 d
Perimeter= 2√2 x 10 =28.2 inches
15. a=3.5 ft, c= 14ft, b=?ft


b=√7.35
b=2.71 ft
16.

AC=√360
AC=18.98 cm
I hope this helps! :)