Find the unknown side A ( trigonometry with one known side and an angle)

  1. First we need to make sure we have a nicely labelled triangle, identifying which sides are the adjacent, opposite and hypotenuse. 2) Once these are labelled we will can work out which trig function to use with SOHCAHTOA 3) Now we can create an equation involving all off the information we know about the triangle eg COS(50)=A/104)Finally solve the equation to find the side length A ---- A=10COS(50)=9.65
TL
Answered by Tobias L. Maths tutor

2865 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Denise buys 5 apples and 3 bananas for £3.15. A banana costs 25p more than an apple. How much would it cost to buy 4 apples and 2 bananas?


There are 12 counters in a bag. There is an equal number of red counters, yellow counters and blue counters in the bag. There are no other counters in the bag. 3 counters are taken from the bag. Work out the probability of taking 3 red counters.


Calculate the value of 2^(–3) as a fraction in its simplest form.


Solve for x and y, with x and y satisfying the equations 3x+2y=36and 5x+4y=64


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