exam Maths Puzzle Numerical Ability

I need to know how to measure a triangle using linear pairs, and also measuring triangles using vertical angles.

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exam Other Question

reduce to lowest terms

20w^2y^5/15w^3z^5-5w^5
evaluate the polynomial when x= -1, y=2, z=3

12^4y^2z+8x^3y-11x^7y+5x^5yz^2

solve
(5x^2y^5-13x^3y^3+8x^4y)-(-17y^5x^2+6x^3y^3+15yx^4-2xy^3)


(3/7x^4+3/4x^3-1/5x+3/8)+(1/