It will take 36 days for 20 men to complete the building
All sides are equal in an equilateral triangle and the perpendicular bisects the side too.
so BC will be bisected and the segments be 5 each.
you can use Pythagoras theorem to find the altitude length, hypotenuse will be one side of the triangle.

$h^2=100-25=75$
$h=\sqrt{75}=5\sqrt3$
Answer:
It may be 71.78 cm square
We have: x ×
÷
= x ×
×
= x ×
= x ÷
ANSWER: E. 4/5
Ok done. Thank to me :>
Answer:
Step-by-step explanation:
DE*s=BA 24*s=35 s=35/24
(3x+7)35/24=6x-5
35/8x+5/24=6x-5
-5/24 -5/24