Answer:
Step-by-step explanation:
use the formula
so you would get
Those negatives becomes a positive and you get 4+8 = 12 and 0+7 = 7
you final answer would be
an isosceles triangle has two 5.5 cm sides and two 32.4 angles. find the area and primeter of this triangle.
1 answer:
The area and perimeter 10.7625 sq. cm and 11.5536 cm.
<h3>What is Trigonometry?</h3>Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
let us construct perpendicular bisector.
Using trigonometry
cos = B/H
cos 32.4 = x / 5.5
5.5 cos 32.4 =x
We will consider the third side 2x.
So, 2( 5.5 cos 32.4) is the third side
P = 5.5 + 5.5 + 2( 5.5 cos 32.4)
= 11 + 0.5536
= 11.5536 cm
Area= 1/2* 5*5* sin 115.2
= 12.5 * 0.861
= 10.7625 sq. cm
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Answer:
90 minutes
Step-by-step explanation:
let x=amount of time it would take for Shelby to knit the scarf
cross multiply
15*30=5x
450=5x
450/5=x
x=90
It would take Shelby 90 minutes to knit a scarf that is 30 inches long.