Similar triangles
All You Need in One PlaceEverything you need for Year 6 maths and science through to Year 13 and beyond. | Learn with ConfidenceWe’ve mastered the national curriculum to help you secure merit and excellence marks. | Unlimited HelpThe best tips, tricks, walkthroughs, and practice questions available. |
Make math click 🤔 and get better grades! 💯Join for Free
0/2
Intros
0/4
Examples
Lessons
- Determine if the triangles are similar.
- Which triangles are similar?
Triangle Angles Sides ABC A =90°
B =45°
C =45°AB=12.5
BC=17.7
AC=12.5DEF D =90°
E =45°
F =45°DE=10
EF=14.2
DF=10GHI G =90°
H =60°
I =30°GH=13.8
HI=27.6
GI=23.9JKL J =90°
K =45°
L =45°JK=5
KL=7.1
JL=5 - ABC and DEF are similar triangles. Calculate the missing side length.
- A wood made ramp needs one supporting beam (y) for reinforcement. How long should the supporting beam be?