Answer:
5*-5x*-7=
Step-by-step explanation:
*=multiply
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: 12 nickels
Step-by-step explanation:
Answer:
1728
Step-by-step explanation:
2
r h
2
(11) × 14
968
B=![\pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
B=
11^2 =121![\pi](https://tex.z-dn.net/?f=%5Cpi)
S=2
rh + 2![\pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
S=968 +2 x 121
S=968 +242
= 1728