P = 2(l + w)
p/2 = l + w divide both sides by 2
p/2 - w = l subtract both sides by w
l = (p - w)/2
so c, is your answer.
hope this helps, God bless!
The area of a triangle is 1/2 bh
so to find the area of the larger triangle do the following calculation:
1/2 time 12 time 7. that will give you 42 ft squared. that is the larger triangle.
the next way to find the area i will show you is:
pretend that the the triangle is inside of a rectangle. now you have 4 triangles. you know that the base of the rectangle is 15 ft anf the height is 7. now take the smaller triangle and it has its rectangle base 3 and height 7. multiply to get 21 feet squared. divide by 2 since there are 2 triangles in the small rectangle. 10.5 feet squared
Answer:
Total área: 9+9+8+6= 32 mm^2
Step-by-step explanation:
Square = 3x3 = 9mm^2
Triangle= Heigh: sqrt (3^2+3^2) = 9 and base=3
A = (9x3)/2 = 9mm^2
Rectangle= 4x2= 8mm^2
Triangle (high: 5-2=3)
(4x3)/2 = 6mm^2
Total area
Answer:
58/15
Step-by-step explanation:
1/6 a^2 + 9/10 b
Let a = -4 and b = 4/3
1/6 ( -4)^2 + 9/10 ( 4/3)
PEMDAS says powers first
1/6 (16) + 9/10 ( 4/3)
Then multiply
16/6 + 6/5
Simplify
8/3 + 6/5
Get a common denominator
8/3 *5/5 + 6/5 *3/3
40/15 + 18/15
58/15
