ABD is a triangle, C lies on BD. AD=BD=√2/2 and CD=√3/3. Find the EXACT area of ABC. (all measurements are in cm)

Formula/ Facts you may need for this question: !!! area of a triangle = base * height * 0.5 !!! multiplying fractions = nominators multiplied over denominators multiplied
Step 1: whole triangle area ABD = √2/2√2/21/2 = (√2√21)/(222) = √(22)/8 = √4/8 = 2/8 =1/4
Step 2: ABD- (area wanted) ABC = ACD area = √2/2
√3/31/2 = (√2√31)/(232) = √(23)/12 = √6/12
Step 3: (area wanted) ABC = ABD - ACD = 1/4 - √6/12

Answered by Holly O. Maths tutor

7306 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Thomas wants to see how far he can throw a javelin. He records four of his throws as 45 metres, 40 metres, 55 metres, and x metres. Given that the mean of Thomas' throws is 50, determine the value of x.


Increase £190 by 25%


3x + 12 = 24, solve for x.


There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys.


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences