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Mathematics 15 Online
OpenStudy (anonymous):

Given the two figures are similar, calculate the value of BR.

OpenStudy (anonymous):

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

simplify meas subtract?

OpenStudy (anonymous):

@campbell_st

OpenStudy (anonymous):

@campbell_st

OpenStudy (anonymous):

@campbell_st

OpenStudy (anonymous):

it means subtract right?

Directrix (directrix):

@ilikegorillas The lengths of corresponding sides of similar polygons are in proportion.

Directrix (directrix):

So, BR is to OP as BN is to PQ BR/OP = BN/PQ 2x / 4 = 5/2

Directrix (directrix):

Cross multiply (means-extremes property) to get: 4x = 20 x = ? Double that value to get BR.

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