Because all angles adds up to 180 we are going to add the equations and equal it to 180.
5x - 3 + 4x - 7 + x = 180
5x + 4x + x - 3 - 7 = 180
10x - 10 = 180
10x = 180 + 10
10x / 10 = 190/10
x = 19 degrees
5x - 3
5(19) - 3 = 92 degrees
4x - 7
4(19) - 7 = 69 degrees
angle L = 92 degrees
angle M = 69 degrees
angle N = 19 degrees
Perimeter= 2L + 2W
312 cm= 2L + 2(64)
312= 2L + 128
subtract 128 from both sides
184= 2L
divide both sides by 2
92 cm= L
ANSWER: The length is 92cm.
Hope this helps! :)
Answer:
see explanation
Step-by-step explanation:
(a) The figure is a parallelogram
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height )
Here A = 63, b = 7 and h = x, thus
63 = 7x ( divide both sides by 7 )
x = 9 cm
(b) The figure is a kite
The area (A) of a kite is calculated as
A = the product of the diagonals
Here A = 48, d₁ = 4 + 4 = 8 and d₂ = x, thus
48 = × 8 × x = 4x ( divide both sides by 4 )
x = 12 ft
Answer:
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Step-by-step explanation: