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.

Answered by Emma G. Maths tutor

2519 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

The equation of line A is (x)^2 + 11x + 12 = y - 4, while the equation of line B is x - 6 = y + 2. Find the co-ordinate(s) of the point at which lines A and B intersect.


How do I do simultaneous equations?


solve the equation x^2 -5x +1 = 25


Find the gradient of the line on which the points (1,3) and (3,4) lie and find the y-coordinate of the line at x = 7.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences