Measurement

Curriculum details

Strand

Geometry and Measurement (Strand 3)

Sub-strand

Measurement (3.2)

Content standard

B8.3.2.1 - Apply the Pythagoras theorem, the primary trigonometric ratios and the formulas for determining the area of a circle to solve real problems.

Indicator

B8.3.2.1.4 - Use the Pythagoras theorem to calculate the area of a triangle in real life problems.

Suggested placement

Term 3, Week 4 (Week 28 of the year)

Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.

Curriculum reference

Mathematics, Common Core Programme (JHS1-JHS3), 2023, p. 145

Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g.1 A boat travels 2m South and then 9m East. How far is the boat from its starting point?
E.g.2 Yeboah hangs a picture frame of width 15cm on the wall. The distance from the nail to the edge of the picture frame is 10cm.
(i) Find the length of the wire used to hang the picture frame.
(ii) Find the area of the triangle.
E.g.3 A ladder leans against a vertical wall of height 13m. If the foot of the ladder is 6m away from the wall, calculate the length of the ladder.
E.g.4 The length of a side of an equilateral triangle is 12cm. Find
i. the height of the triangle
ii. the area of the triangle
iii. the perimeter of the triangle