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

HO
Answered by Holly O. Maths tutor

8791 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do you calculate the area of a circle?


Make x the subject of the formula: 3x - 2 = y + 10


How do you turn 0.11111... (recurring) into a fraction


£3000 is invested for 2 years at 3.8% per annum compound interest. What is the total interest earned over the 2 years?


We're here to help

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

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning