Sarin learns Lines and Angles in school part 9 (Math Question)

Standard

The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presenting the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can aquire the skills of dealing with Math Modeling, Math Problem Solving and Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Lines and Angles.

Read the posting on Sarin learns Lines and Angles (Math concept) to understand the concept of lines and angles.

Challenge yourself with the question before look out for the given solution‼!

Upper primary school mathematics question UPQ318

AB, CD and EF are straight lines. ∠y is twice the size of ∠x. Find ∠y. The figure is not drawn to scale.

Solution:   

                      ∠ y = 2∠ x

                      EF is a straight line

                      ∠ x + ∠ y = 1800 – 330 = 1470

                      3∠ x = 1470

                      ∠ x = 490

                      ∠ y = 2 × 490 = 980

 More Questions on Lines and Angles. Click here….

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s