A quadrilateral shape has angles of 60, 75, and 105 degrees. How many degrees is the fourth angle?

All interior angles in a quadrilateral add up to 360 degrees. Adding up what we know so far 60 + 75 + 105 = 240. So the fourth angle must be 360 - 240 which equals 120 degrees.

PB
Answered by Priti B. Maths tutor

5833 Views

See similar Maths KS3 tutors

Related Maths KS3 answers

All answers ▸

Asha and Lucy sell pencils. Asha sold 7 boxes, and 22 singles. Lucy sold 5 boxes, and 2 singles. Given Asha sells twice as many pencils as Lucy, work out how many questions are in each box.


1) What is the area of a rectangle? 2) What is the area of a triangle?


Bob buys 33 pens and 21 rulers for £6. A ruler costs 8 pence more than a pen. How much does one pen cost?


Add the fractions 2/5 + 3/7.


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