Looking at the diagram, work out the angle of a) x, b) y, and c) z

a) the triangle is isosceles so the two missing angles must be identical. all angles in a triangle add up to 180. therefore, 180-40=140 140/2 = 70* = xb) this triangle has two angles given already, so the same rule applies. 90 + 40 = 130 180-130 = 50 = yc) now you know two out of three angles on the straight line. the angles at a point on a straight line all add up to 180. therefore, x + y + z = 180. 70+50+z=180. 120+z=180. z = 60.

EG
Answered by Emma G. Maths tutor

2748 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve these simultaneous equations; 2y + x = 8, 4 + 4y = 8x


3^2 + 4^2 = x^2. Find x


Solve the following simultaneous equations: 3x + 5y = 19 and 8x - 2y = -18. If both equations represent lines in a coordinate system, at which point do they intersect?


Solve 5x - 2 > 3x + 11


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences