Grade: 7
Subject: MATHEMATICS
Topic: AREA OF TRIANGLE.
Teacher’s Name:
WA R M U P
AC T I V I T Y
PRE TEST:
Which are the different types of
triangles?
INTRODUCTORY
ACTIVITY: CHALLENGE
Before she goes camping, La Verne has to
buy a tent pole to replace the one she lost
on her last outing. If the area of the front
of the tent is 22 square feet and the base
of the tent is indicated below, how tall
must the pole be?
INTRODUCTORY ACTIVITY
LEARNING OBJECTIVE
•To evaluate area of a triangle.
•To apply in real life context
REAL LIFE APPLICATIONS
Triangles are also used in architecture for both
aesthetic and functional purposes. The triangle shape
is often used to create interesting and dynamic shapes
in building design.
They are used in structural engineering, architecture,
graphics and design, and navigation and geography to
create stable and interesting shapes
Group B: Suppose the height of a cone is 20cm and its
base is 10cm, then find the area of 50 such cones.
CONCEPT
ACTIVITY:
Group A: Find the area of
the given triangular part of
the roof of the house
Group C:Before she goes camping, La Verne
has to buy a tent pole to replace the one she
lost on her last outing. If the area of the front
of the tent is 22 square feet and the base of
the tent is 8ft, how tall must the pole be?
Challenge
https://www.geogebra.org/m/jmgu5t2z
PLENARY
&
AFL:
LET’S PLAY A GAME!
https://wordwall.net/resource/14759047/area-oftriangles