Answer:
1. a = 5, b = 8
2. d = 2
Step-by-step explanation:
1. The sum of adjacent angle is 180 degree
115 + 8b +1 = 180
8b = 180 -116
b = 8
Similarly
14a - 5 + 115 = 180
14a = 180 -110
14a = 70
a = 14
2. Intersecting diagonals divide each other into equal halves
3d + 5 = 5d + 1
2d = 4
d = 2
Answer:
its actuly 12
Step-by-step explanation:
16x12=192
Answer: -18
Step-by-step explanation:
The answer is - 18 because, -15+9=-6 and -6-12=-18
Answer:
202 cm^2
Step-by-step explanation:
SA = 2LW + 2LH + 2WH
SA = 2(4 cm)(5 cm) + 2(4 cm)(9 cm) + 2(5 cm)(9 cm)
SA = 40 cm^2 + 72 cm^2 + 90 cm^2
SA = 202 cm^2
L = 10a + a
L = 11 a
W = 1/10 (11a)
W = 1.1 a
Perimeter = 2(L + W)
Perimeter = 2*(11a + 1.1a)
Perimeter = 22a + 2.2 a
Perimeter = 24.2 a
Area = L * W
Area = 11a * 1.1a
Area = 12.1 a^2
The perimeter is 2*area
P = 2*A
P = 2* 12.1 a^2
P = 24.2 a^2
Now put in the perimeter on the left side of the above equation.
24.2a = 24.2 a^2 Divide both sides by 24.2
1 a = a^2 Divide by a
1 = a
The length = 11*a = 11*1 = 11
The Width = 1.1 a = 1.1 * 1 = 1.1
Answers
L = 11 <<<<<<< answer
W = 1.1 <<<<<< answer
