Answer:
x ≈ 36.2
Step-by-step explanation:
Since the legs are congruent then the triangle is isosceles.
The altitude bisects the base and divides the triangle into 2 right triangles.
Using the right triangle on the right with legs 33 and 15
Apply Pythagoras' identity to the right triangle, that is
x² = 33² + 15² = 1089 + 225 = 1314 ( take the square root of both sides )
x = ≈ 36.2 ( to 1 dec. place )
150 members. <span>let the number be x </span>
<span>so 40%of x=60=====> 40/100 *x = 60 multiply both sides by 100/40 </span>
<span>x=60 *100/40 =150 </span>
<span>x=150 so the number is 150</span>
Multiplication is always the same. A huge help is using a calculator. In year 3 you work on times tables, I think. If you have trouble with a specific question please elaborate.