Yo sup??
This question can be solved by using the property
a²-b²=(a-b)(a+b)
Here a=A
b=C
plugging in the values
A^2-C^2=(A-C)(A+C)
Hope this helps
The first one is A and the second one is D.
Answer:
-3
Step-by-step explanation:
Remember that the angles of a triangle is 180 so:
(7x+8) + (5x+2) + (7x-1) = 180
7x+8+5x+2+7x-1=180
7x+5x+7x=180-8-2+1
19x=171
X= 171/19
X=9
Therefore x=9
ANSWER: 314.15 sq. cm
Step-by-step explanation:
Lid of a circular jar will be a circle.
Given,radius of the lid,r=10cm
Area=π*r*r
=3.1415*10*10 sq.cm
=314.15 sq cm (approximately)