Answer:
20√3 cm
Step-by-step explanation:
Altitude of an equilateral triangle splits it into 2 equal right triangles, it bisects the base and the angle opposite to the base.
<u>Let the altitude be x. Then as per Pythagorean theorem:</u>
- x² = 40² - (40/2)²
- x²= 1600 -400
- x²= 1200
- x= √1200
- x= 20√3 cm
<u>Correct choice is</u> the second one
Answer:
16.03
Step-by-step explanation:
45 is 9% of 500!
<em>I hope this helps!</em>
X+20 because x= origanal amount +20 more
1 cubic foot = 7.48 gallons
hence
unit conversion
3000 x 7.48 =22440
