Cross multiply X×4=3×1
4x=3
X= 3/4
Answer:
dissect the trapezium into a square and triangle. since the triangle is a right angled one the base is 17-7=10cm
the height is found using Pythagorean theorem to be 24cm i.e 26²=x²+10²,x=√(676-100),x=√576,x=24cn
area of trapezium is (1/2)(a+b)h
a is the shorter side and b the longer side
(1/2)*(7+17)24
=288cm²
Answer:
Step-by-step explanation:
We have the triangle 30° - 60° - 90°. In that triangle sides are in proportion
1 : √3 : 2 <em>(look at the picture).</em>
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We have
<em>multiply both sides by √3 (use √a · √a = a)</em>
<em>divide both sides by 3</em>
