Answer:
Step-by-step explanation:
This triangle is a 30°-60°-90° triangle, so you should always remember the rule shown in the picture. Because y is across from the 60° angle, it will be . 3 is x because it is across from the 30° angle, so y will be .
I'm guessing you mean a^2? if so then,
a^2+28a+27=
(a+1)(a+27)
Answer:
Step-by-step explanation:
Given
Required
Find the surface area when the length is
To do this, we simply substitute for s in the given formula
becomes
Combine Fractions
Simplify Fraction
Answer:
15+15+15+2+2+2+2=(3×15)+(4×2)=45+8=53