2 years ago

What is the supplement angel of 66

Mathematics

2 answers:

choli [55]2 years ago

8 0

Answer:

180

if you want a step by step answer put a comment below

Andre45 [30]2 years ago

4 0

180,have a beautiful day!

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An isosceles triangle has an area of 254 km², and the angle between the two equal sides is 53°. Find the length of the two equal

torisob [31]

Area of a triangle = 1/2 ab sinC

In this equation the angle C is between the two adjacent sides ab
Since the lengths are equal we can call them both X
Hence 254= 1/2 (x)(x) sin53
By simplifying 508 = (x^2) sin53
So therefore x is the square root of 508 divided by sin53 which means the length of the sides is 35.8km to 3 significant figures

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2 years ago

Find the cost of kg of apples and the cost of an orange using simultaneous equations method:

PtichkaEL [24]

Cost of kg of apples = £1.08
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hi, the solution is in the pic below. sorry for the messy working!