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

9165 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the simultaneous equations: 4x+5y = 38 , x-y = 5


The point P has coordinates (4, 5). The point Q has coordinates (a, b). A line perpendicular to PQ is given by the equation 5x+3y=11. Find an expression for b in terms of a.


Solve 5 < x² + 1 < 10


Solve the following simulateous equations: 3x+y=11 and 2x+y=8


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